Cochrane · systematic review · CD006320

Omega 3 fatty acids (fish oil) for maintenance of remission in Crohn's disease

Lev‐Tzion, R, Griffiths, AM, Ledder, O, et al. · Cochrane Database of Systematic Reviews · 2014 · Cochrane Library

GutAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
5
current version
GRADE rated
5
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 2 · 40%Low 0 · 0%Moderate 3 · 60%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Comparison

Population: Crohn's disease patients in remission
5 questions
OutcomeEffectEvidenceStatus / GRADE
Relapse rate at one year (all studies)
RR 0.77 [0.61, 0.98]6 studies · 1039 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency, publication bias
Relapse rate at one year (sensitivity analysis of Belluzi 1996)
RR 0.77 [0.64, 0.93]5 studies · 904 participantsVery low
Downgraded: risk of bias, imprecision, publication bias
Relapse rate at one year (only EPIC studies)
RR 0.88 [0.74, 1.05]2 studies · 738 participantsModerate
Downgraded: imprecision
Adverse events rate‐Diarrhea
RR 1.36 [1.01, 1.84]4 studies · 862 participantsModerate
Downgraded: imprecision
Adverse events rate‐ Upper GI (nausea, vomiting, halitosis, heartburn, dyspepsia, dysgeusia and bloating)
RR 1.98 [1.38, 2.85]5 studies · 999 participantsModerate
Downgraded: imprecision